| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 02/04/2015 | CN104329050A 壁后注浆井壁可移动式内撑井圈 After grouting the wall can support mobile Manhole within |
| 02/04/2015 | CN104329049A 一种等环空体积固井方法 One kind of methods, such as cementing the annulus volume |
| 02/04/2015 | CN104329048A 一种内管插入式注水泥器 An internal tube insert Cementer |
| 02/04/2015 | CN104329047A 智能井顶部封隔器 Well intelligent top packer |
| 02/04/2015 | CN104329046A 一种旋转液压封隔器 A rotary hydraulic packer |
| 02/04/2015 | CN104329045A 一种投球双锥角密封球座 One kind of pitching double tapered seal tee |
| 02/04/2015 | CN104329044A 自由站立式立管底部连接结构 Free-standing riser bottom connection structure |
| 02/04/2015 | CN104329043A 油井环空测试井口装置 Well annulus test wellhead |
| 02/04/2015 | CN104329042A 一种自封头胶芯总成 A self sealing plastic core assembly head |
| 02/04/2015 | CN104329040A 起长井段射孔枪工艺及专用装置 Nagai segment from gun technology and special equipment |
| 02/04/2015 | CN104329023A 煤层气丛式井钻井方法 CBM cluster wells drilling method |
| 02/04/2015 | CN104327812A 一种新型石油钻探堵漏剂及其堵漏方法 A new oil drilling and plugging method of sealing agent |
| 02/04/2015 | CN102966329B 抽采钻孔封堵装置及方法 Borehole sealing device and method |
| 02/04/2015 | CN102943637B 用于在钻机上夹紧管道的装置 The tube gripping means used in the rig |
| 02/04/2015 | CN102733772B 不压井可进行井下作业油管头采油树 Killing is not available for Downhole Tubing Head Christmas tree |
| 02/03/2015 | US8944403 Blowout preventer with pressure-isolated operating piston assembly |
| 02/03/2015 | US8944172 Method and system for hydraulically presetting a metal seal |
| 02/03/2015 | US8944171 Method and apparatus for completing a multi-stage well |
| 02/03/2015 | US8944166 Composition and methods to prevent corrosion by CO2 on cement composition |
| 02/03/2015 | US8944165 Cement composition containing an additive of a pozzolan and a strength retrogression inhibitor |
| 02/03/2015 | US8944159 Horizontal fracturing tree |
| 02/03/2015 | US8944156 Hanger floating ring and seal assembly system and method |
| 02/03/2015 | CA2798469C Downhole isolation methods and apparatus therefor |
| 02/03/2015 | CA2707059C Method and apparatus for installing and removing an electric submersiblepump |
| 02/03/2015 | CA2689095C Subsea intervention system |
| 02/03/2015 | CA2643800C Casing head slip lock connection for high temperature service |
| 02/01/2015 | CA2858271A1 Insert units for non-metallic slips oriented normal to cone face |
| 01/29/2015 | WO2015013426A2 A holding device to hold a reflector and an electromagnetic guiding device |
| 01/29/2015 | WO2015013278A1 Swellable casing anchor |
| 01/29/2015 | WO2015013276A1 Grooved swellable packer |
| 01/29/2015 | WO2015013274A2 Temperature compensated element |
| 01/29/2015 | WO2015012854A1 Retrieval of compressed packers from a wellbore |
| 01/29/2015 | WO2015012834A1 Wellbore isolation devices and methods of use to prevent pump offs |
| 01/29/2015 | WO2015012831A1 Well ranging tool and method |
| 01/29/2015 | WO2015012799A1 Expandable liner hanger with high axial load capacity |
| 01/29/2015 | WO2015011518A1 Borehole configuration for carrying out selective hydraulic fracturing of layer (variants) |
| 01/29/2015 | WO2015011033A2 Tubing head spool actuation through landing string |
| 01/29/2015 | WO2015010977A1 Polyarylethersulfone oil and gas recovery articles, method of preparation and method of use |
| 01/29/2015 | WO2015010813A1 Well tool comprising a plugging device and a junk catching device |
| 01/29/2015 | US20150027738 Method and system for one-trip hanger installation |
| 01/29/2015 | US20150027737 Insert Units for Non-metallic Slips Oriented Normal to Cone Face |
| 01/29/2015 | US20150027730 Well tree hub and interface for retrievable processing modules |
| 01/29/2015 | US20150027719 Method and system for containing uncontrolled flow of reservoir fluids into the environment |
| 01/29/2015 | US20150027718 Apparatus and method for processing fluids from a well |
| 01/29/2015 | US20150027717 Process For Subsea Deployment of Drilling Equipment |
| 01/29/2015 | US20150027714 Swelling Debris Barrier and Methods |
| 01/29/2015 | US20150027707 Engineered methods and materials for wellbore strengthening in subterranean operations |
| 01/29/2015 | US20150027705 Method for Zone Isolation in a Subterranean Well |
| 01/29/2015 | US20150027704 Packer end ring with device for gripping base pipe |
| 01/29/2015 | US20150027696 Method of collecting sample using multi-packer and apparatus thereof |
| 01/29/2015 | US20150027692 Multi-Interval Wellbore Treatment Method |
| 01/28/2015 | EP2829684A1 Electronically-actuated, multi-set straddle borehole treatment apparatus |
| 01/28/2015 | EP2828473A1 Alignment system for flapper valve |
| 01/28/2015 | EP2828472A1 Stage tool for wellbore cementing |
| 01/28/2015 | EP2828471A2 Inflatable collar and downhole method for moving a coiled tubing string |
| 01/28/2015 | CN204126598U 多次激活旁通系统 Multiple Activation bypass system |
| 01/28/2015 | CN204126595U 一种水文观测孔注浆封孔压盘装置 Hydrology observation hole grouting platen sealing device |
| 01/28/2015 | CN204126594U 一种用于污染废渣固化的注浆系统 A contaminated waste grouting systems for curing |
| 01/28/2015 | CN204126593U 自膨胀堵塞装置 Since the expansion of the plugging device |
| 01/28/2015 | CN204126592U 石油套管气密封检测封隔器 Gas seal oil casing packer detection |
| 01/28/2015 | CN204126591U 带压作业尾管循环封堵成套装置 Pressure job blocking circulation tailpipes complete unit |
| 01/28/2015 | CN204126590U 海上钻井支持平台随动对中气动软连接器 Offshore drilling platform support for the pneumatic servo soft connector |
| 01/28/2015 | CN204126589U 高纳流体密封芯料抽油机井口密封装置 Gaona core material pumping fluid sealing wellhead seal |
| 01/28/2015 | CN204126588U 一种光杆密封器 A light bar sealer |
| 01/28/2015 | CN104321502A 设置有压接金属元件的管道和相应的方法 Is provided with a pipe crimping metal element and a corresponding method |
| 01/28/2015 | CN104314607A 一种多阶段提高煤层钻孔瓦斯抽采浓度的方法 A multi-stage method for improving coal seam gas drainage drilling concentration |
| 01/28/2015 | CN104314587A 定点控域注浆装置及注浆工艺 Designated domain controller device and grouting grouting process |
| 01/28/2015 | CN104314540A 一种注蒸汽油藏防治汽窜方法 A steam reservoir steam channeling prevention methods Notes |
| 01/28/2015 | CN104314515A 一种煤矿钻孔的封孔方法及封孔装置 Sealing method and apparatus for sealing mine drilling |
| 01/28/2015 | CN104314514A 一种裂缝性油藏弱凝胶调剖性能评价可视化实验装置及方法 Profile of a weak gel reservoir performance evaluation of visual crack experimental apparatus and method |
| 01/28/2015 | CN104314513A 鱼尾式浮箍 Fishtail float collar |
| 01/28/2015 | CN104314512A 一种井口悬挂封隔器 One kind of suspension wellhead packer |
| 01/28/2015 | CN104314511A 一种压缩式底封封隔器 A compression-type bottom packer |
| 01/28/2015 | CN104314510A 一种带压缩保护机构的自膨胀封隔器 A tape compression protection agency self-expandable packer |
| 01/28/2015 | CN104314509A 一种深钻孔测压封堵方法及装置 A dark drilling method and apparatus for sealing manometry |
| 01/28/2015 | CN104314508A 一种用于煤层瓦斯抽排钻孔的封孔方法 A sealing method of drilling for coal seam gas extraction |
| 01/28/2015 | CN104314507A 一种变径闸板总成 One kind of variable bore ram assembly |
| 01/28/2015 | CN104314506A 一种电控压缩式井下防喷器 An electrically controlled compression downhole BOP |
| 01/28/2015 | CN104314505A 一种无杆采油井口气密装置 A non-airtight rod wellhead equipment |
| 01/28/2015 | CN104314504A 一种新型柔性杆密封方法 A new method of flexible rod seal |
| 01/28/2015 | CN104314498A 一种侧钻水平井高效完井方法 A lateral horizontal well completions and efficient method |
| 01/28/2015 | CN104314496A 一种注聚井专用投捞堵塞器 One kind of specialized polymer injection well plugging and pulling devices |
| 01/28/2015 | CN102889066B 控压钻井自动节流管汇 MPD automatic choke manifold |
| 01/28/2015 | CN102787823B 井下旋流剪切发生器 Cut underground swirl generator |
| 01/28/2015 | CN102197189B 带有载荷转向系统的井下工具和方法 Downhole tools and methods with the steering system load |
| 01/27/2015 | US8940670 Cement compositions comprising sub-micron alumina and associated methods |
| 01/27/2015 | US8939235 Rotating control device docking station |
| 01/27/2015 | US8939222 Shaped memory polyphenylene sulfide (PPS) for downhole packer applications |
| 01/27/2015 | US8939220 Expandable slip ring for use with liner hangers and liner top packers |
| 01/27/2015 | US8939218 Apparatus and method for the installation or removal of a rotary control device insert or a component thereof |
| 01/27/2015 | US8939216 System and method for snubbing under pressure |
| 01/27/2015 | US8939209 Method and apparatus for dropping a pump down plug or ball |
| 01/27/2015 | US8939201 Resilient foam debris barrier |
| 01/27/2015 | CA2776601C Methods of zonal isolation and treatment diversion |
| 01/26/2015 | CA2863603A1 Dome ceramique de rupture pour regulation de pression |
| 01/26/2015 | CA2857848A1 Electronically-actuated, cementing port collar |
| 01/26/2015 | CA2857841A1 Downhole activation assembly with sleeve valve and method of using same |
| 01/22/2015 | WO2015010011A1 Composition for use in conducting downhole operations in oil and gas wells |
| 01/22/2015 | WO2015009987A1 Drillable plug |
| 01/22/2015 | WO2015009577A1 Self-draining production assembly |